package nrrg.zhujuxing.application.learnscala

import scala.collection.mutable.ListBuffer

object ListTest {
  def main(args: Array[String]): Unit = {
    val a = ListBuffer(1, 2, 3)
    a(1) = 3
    println(a)


    val b = Map("a" -> 1, "b" -> 2, "c" -> 3)
    println(b("a"))
    //    println(b("d"))
  }

}
